Machine for treating rubber.



Ls NORZAGARAY.

MAQHINE FOR TREATING RUBBER.

APPLIOA'I'IGN FILED DEL` 11, 1911.

Patented Sept, 15, 1914.

UNTTED STATES PATENT oFnroE.

LEONIDAS'NORZAIGARAY, 0F LONDON, ENGLAND, ASSIGNOR TOTHE ECONOMIC RUBBER WASHING MACHINE CO., LIMITEE, OF LONDON, ENGLAND, A COR PORATION OF ENGLAND,

MACHINE FOR TREATING RUBBER.

Specification of Letters Patent.

Patented sept. 15, 1914.

Application led December 11, `1.911. Serial No. 66 6,111.

Toall 'whom 'it 'may conce/ra:

Be it known that I, LnoNioAs NORZAGA- RAY, alcitize'n of the Republic of Brazil, residing at 35 Hargrave Mansions, Hargrave Road, Upper Holloway, London, England, have invented certain new and useful Improvements in Machines for Treating Rubber, of which the following is a specification.-

section. Fig. 2 is a section through the ro tatin cylinder.

Rel `errin'ginore particularly-to the Adrawings the machine comprises an open top vessel a., the upper portion being cone-shaped and the lower portieri ofcircula-r shape.

` The vessel ais provided with an outwardly extendingV fiange f: which is bolted or otherwise attached to a stand (l, preferably of metal: The interior of the vessel is grooved or corrugated forming a spiral thread b,

i and the lower endor circular portion of the vessel terminates in a hollowed 'outportion eof the metal stand d which in reality forms the bottom of the vessel.

AVithiil the open top vessel is arranged avilotatablecylinder or drum f of the same hei ht assaid vessel. This cylinder may be eitlligerhollowv onperforated and is provided ori/its outside with ribs on;y projections g fiiinga spiral thread;n 'Perpendieular teeth h are als'ovpro'vided at intervals, between the' teeth of the spira'l'ribs' g. These teethl arefabout -half the thicknessof the ribs jg and'fconsequently dd'notpfroject outwardly from the face of` the cylinder sufic'ie'ntly far'for'their outer 'face to be flush with tlfel outer faces ofthe ribs. Alternatively the perpendicular teeth on the cylluder be continuous and the spiral ribs consequently broken, Again each section of thespiral ribs between two of the vertical ribs may be cut or notched vertically so as to form saw-like teeth.

The cylinder isfnrnished at the bottom of its periphery one or more laterally projecting teeth z' and with perforations l for a purpose hereinafter described. Preferably the cylinder is attached to or may be an integral part of. a` shaft having a gear wheel fr on its upper end engaging another gear wheel Z1 the latter being attached to a horizontal driving Vshaft Z which is supported on the frame work m of the machine and driven from a suitable source of power. This cylinder shaft j projects beyond the bottom of the cylinder and the lower end thereof is housed in a chamber .n formed in the machine stand. The chamber u extends through the stand (which is partly hollowed out at the bottom as previously described) and is tted with a removable bearing nl upon which the end of the shaft revolves. A bearing collar for the upper end of the shaft is attached to the frame work and directly beneath this collar isl arranged an oil trap o1.

A metal roller p, of about the same diameter as the spiral cylinder f is arranged immediately above said cylinder and attached to or formed integrally with the shaft j. This roller is provlded with under cut teeth p1 at the bottoni of its periphery. These teeth form a cutting gear wheel. A smaller roller Q adjacent to the roller p, is also provided with projecting cuttingteeth [1 adapted to mesh with the teeth p1. The roller g is mounted in the frame of the open top vessel] a' andis provided with an oil trap q2, bearing collar Q3 and gear wheel o5, the latter being arranged to mesh with the gear wheel k'of the larger roller p. Y

A space as at ris created between the rollers as by making the teeth on the smaller roller or rollers ot a greater depth than that of the teeth on the larger roller. This space may be varied by the substitution of other small rollers having teleth of a greater or lesser depth, or -by employingl gear wheels-capable of being removably attached to the small rol1er- -ha.ving teeth of varying depth. Or Inlay make the larger roller quite plain and attach a cutting col" lar or collars to thebovttom` orfbottoms of the smaller roller or rollers. In this case the space between the rollers will be regulated by employing rolls` of a., larger o r smaller circumference. The larger roller may have wording on its surface for marli- Amouth of thefeediug tube.

ing the rubber sheets. The small roller may be either plain or corrugated. A collar s, iXed by means of a flange at its lower end to the top of the frame of the open topped vessel, partly surrounds the. above mentioned rollers for a distance of about half their height. ThisI collar has a side opening furnished with a guide (not shown) to allow ofthe egress of the finished rubbersheets from the machine. A perforated pipe s" arranged partly around the inside of the top of said collar, or Vthe pipe may be made in one. piece with the4 collar as shown in the drawings. This pipe issuitably con` nected to a liquid supply (not shown).

A feeding tube 1. of preferably conical shape, and of the saine height as the open topped vessel is positioned in front of the latter and within the frame work of the machine, and is provided with l'i1/flange l by means of which it is bolted to the stand, and 'has an opening f2 at its lower end leading into the open topped vessel. spindle or shaft u, revolving at its lower end upon a removable bearing. u,'arranged in the stand a. of the apparatus, is partly housed in said feeding tube and is provided with` a tapering feed worm uf of a length some what Vless than that of the tube. The upper end of the spindle or shaft is supported by a bearing collar 11,4, having an oil trap 'ua beneath, attached to the frame work and is adapted to be rotated by a gear wheel 'a5 at its upper end which meshes with another gear wheel Z2 at the end of the horizontal driving shaft. tap r, connected to a suitableliquid supply, is arranged over the The entire apparatus- With the exception ofthe outer frame workwis surrounded by a steam or waterjacket w to a height slightly less than that of the open topped vessel a. This joletdsattached to the stand by means of flange provided on its lower end, which is bolted thereto as at zr.

Anaperture or passage is provided leading from the bottom of the vessel a and to the outside of the stand d and a tap or cock controls the out flow ofl liquid from thisaperture.

The working of the apparatus is as follows: The steam or hot Water jacket is prepared. The vessel a and tube t are charged with hot water or other suitable liquid by means of the perforated pipe .s1 and tap e until the liquid reaches the desired level. The cock or tap which controls the outlet of the aperture or. passage leading from the bottom of the vessel is then opened to such an extent as to keep the liquid at this level thus insuring a continuously descending volume of clear' liquid. The driving shaft Z is put in motion and the cylinder f, rollers p, g and shaft u rotated. The material to be treated is continuously fed into the top of tube z5,

forced down by the worm a# to me opening t2, stirred up by the lateral tooth or teeth t' on the cylinder and carried upward between the spiral thread I) of the vessel a and the spiral ribs r/ and vertical teeth 'h on said cylinder, being pressed,` rolled and masticated thereby. The mass thus treated emerges into the space between the roller p and collar s, it then being carried, under the rotary action of the moving parts, to, and delivered into the space ff, where it is again subjected to pressure, and has impressed thereon, the indicia with which the roller p may he provided, said mass then being cut and finally conveyed out of the machine through the opening and guide in said collar above referred to, it being taken at this' point and suitably disposed of by an attendant.

l. ln a machine of the class described, a conical feeding tube, a worin operating therein, a spira'lly threaded vessel of a shape fpartly conical and partly circular, communicating with said tube, a spirally threaded cylinder rotatable within said vessel, said cylinder having vertical teeth and a lateral tooth thereon, a large roller immediately above the cylinder provided with a toothed cutting wheel, a smaller roller ad-A jacent said large roller and also provided. with a toothed cutting wheel, a collar partly sur-rounding these rollers, provided with an outlet, a perforated pipe on said collar, and means Jfor simultaneously rotating said spiially threaded cylinder and said worm.

2. In a. machine of the class'described, a conical feeding tube having an' opening in the lower end thereof, a worm operating in said tube, a spirally threaded vessel communicating with the opening in saidfeeding tube, a spirally threaded cylinderV rotatable within said vessel, said cylinder having vertical teeth and a' lateral tooth thereon, a pair of rollers above the cylinder provided with intermeshing toothed cutting wheels, and a collar partly surrounding these rollers provided With an outlet, means on said collar for supplying liquid to said vessel, and means for simultaneously rotating said spirally threaded cylinder and said worm.

3. In a machine of the classdeseribed, a conical feeding tube, having an opening in the lower end thereof, a worm operating in v ing said spirally threaded cylinder and said worm.

4. In a machine of the class described, a conical feeding tube, having an opening in the lower end thereof, a worm operating in said tube, a spirally threaded vessel cornmunicating with the opening in said feeding tube, a spirally threaded cylinder rotatable within said vessel, said cylinder having vertical teeth and a lateral tooth thereon, a pair of rollers above the cylinder provided with interchangeable toothed cutting wheels, and a collar artly surrounding these rollers provided with an outlet, means on said collar for supplying liquid to said vessel, and means for simultaneously rotating said spirally threaded cylinder and said worm.

5. In a machine of conical feeding tub therein, a spirally threaded vessel o a shape partly conical and partly circular, communicating with said tube, a spirally threaded cylinder rotatable within said vessel, said cylinder having vertical teeth thereon, a large roller above the cylinder, a smaller roller adjacent said large roller, one of said rollers being provided with a toothed cutting wheel`separating said rollers apart, and means for simultaneously rotating said spirally threaded cylinder and said worm.

6. In a machine of the class described, a conical feeding tube, a worm operating therein, a spirally threaded vessel of a shape partly conical and partly circular, communlcatlng with said tube', a spirally threaded cylinder rotatable within said vessel, said cylinder having vertical teeth and ribs thereon, said vertical teeth being of less the class described, a

e, a 'worm ofperating thickness than said ribs, a large roller immediately above the cylinder provided withv a toothed cutting wheel, a smaller roller adjacent the large roller and also provided with a toothed cutting wheel, and means for rotating said spirally threaded cylinder and said Worm.

7. In a machine of the class described, a conical feeding tube, a worm operating therein, a spirally threaded vessel communicating with said tube,'a sprally threaded cylinder rotatable Within said vessel, said cylinder having ribs or projections thereon, and vertical teeth between said ribs or projections, .saidv'ertical teeth being of less thickness than said ribs, a pair of rollers, and means for simultaneously rotating said spirally threaded cylinder and wormxand rollers.

8. In a machine of the class described, a conical feeding tube, a worm operating therein, a spirally threaded vessel of a shape partly conical and partly circular, communicating with said tube, a spirally threaded cylinder rotatable within said vessel, said cylinder having teeth thereon, a large roller immediately above the cylinder provided with a cutting wheel, a smaller roller adjacent said large roller and also provided with a cutting Wheel, a stand having removable bearings for supporting the lower ends of the shaft of said worm, and said cylinder, and means for simultaneously rotating said spirally threaded cylinder and said worm.

In testimony whereof I have affixed my signature in presence of two witnesses.

LEONIDAS NORZAGARAY.

Witnesses:

A. ERNON SMITH, ARTHUR J. SMITH. 

